Question

The percentage of a gene of a population can be changed over time if

Answer 1

[AI-generated answer — Bot GPT 3.5]

1. Natural selection favors individuals with certain genes, causing those genes to become more common in the population.

2. Genetic drift, which is the random change in gene frequencies due to chance events, can lead to an increase or decrease in the percentage of a gene in a population.

3. Gene flow, the movement of genes between different populations, can introduce new genes into a population and change the percentage of a gene within that population.

4. Mutations can create new alleles of a gene, which can then increase in frequency in a population through natural selection or genetic drift.

5. Environmental changes can also impact the selective pressures acting on a population, leading to changes in the percentage of certain genes over time.